Captive minorities in nations ruled by all-controlling despots play by the rules — or else. Iran’s estimated 9,000-15,000 Jews, one of the world’s most ancient Jewish communities, are a case in point.

Why? Because playing by the rules is just what happened recently when a visiting PBS journalist came calling on Iran’s Jews — with Teheran’s explicit permission, of course.

You’ll recall that Iran’s leaders constantly call for Israel’s physical destruction and that Teheran funds Lebanese Hezbollah and Palestinian Hamas. Both proxies are also sworn to destroy Israel.

This means that Iranian Jews are between the proverbial rock and a hard place. Many of them have relatives in Israel, and the Jewish homeland is where their biblical-era ancestors fled from some 2,700 years ago, when forced into exile.

In late November, one of PBS’s premiere news platforms, “PBS NewsHour,” broadcast a piece that, like other attempts to explain the Iranian Jewish community, came up frustratingly short.

Once again, those Iranian Jews interviewed on camera said what they always say, which is that life for them in Iran is, on balance, secure — though not always perfectly so — and that Israel is their enemy simply because it's their government's enemy.

What else could they say in a nation where just one politically suspect utterance by a Jewish community member, particularly if made to a foreign media outlet, could mean devastating consequences for them and their co-religionists?

(“Special correspondent” Reza Sayah did note some of the tightly controlled circumstances in which Iran’s Jewish minority survives as second-class citizens. But PBS could have added the comments of an outside expert or two to more fully explain the Iranian context. I can’t help wonder why that didn't happen.)

Here’s the lede-in to the NewsHour story, lifted from the segment’s transcript:

Jewish people have called Iran home for nearly 3,000 years. The Trump administration and U.S. ally Israel often depict the Iranian government as composed of anti-Semitic radical Islamists bent on destroying Israel. But within Iran, many of the estimated 15,000 Jews say they're safe and happy living in the Islamic Republic. Reza Sayah takes a rare inside look at life for Iran's Jewish minority.

“Safe and happy”? Perhaps in a Potemkin village sort of way.